Discontinued Operations - Summary of Condensed Cash Flow Information Discontinued Operations (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Sep. 01, 2015
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Cash Flows from Operating Activities:              
Net loss   $ 0 $ 1,610 $ (7,704) $ 14,512 $ 0 $ 8,418
Adjustments to reconcile net loss to net cash used in operating activities:              
Gain on sale of assets             (17,319)
Impairment charge             7,311
Cash Flows from Financing Activities:              
Net decrease in cash and cash equivalents           0 3,678
EZ Prints [Member]              
Cash Flows from Operating Activities:              
Net loss             (9,386)
Adjustments to reconcile net loss to net cash used in operating activities:              
Depreciation and amortization             555
Amortization of intangible assets             1,229
Stock-based compensation             38
Gain on sale of assets $ (300)           (257)
Impairment charge       $ 7,300     7,311
Change in operating assets and liabilities             295
Net cash used in operating activities             (215)
Cash Flows from Investing Activities:              
Purchase of property and equipment             (121)
Capitalization of software and website development costs             (127)
Divestiture of assets, cash             (3,215)
Net cash used in investing activities             (3,463)
Cash Flows from Financing Activities:              
Net cash used in financing activities             0
Net decrease in cash and cash equivalents             (3,678)
Cash and cash equivalents — beginning of period         $ 3,678 $ 0 3,678
Cash and cash equivalents — end of period   $ 0         $ 0